*{
    margin: 0;
    padding: 0;
    font-family: "Poppins";
}
section{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    box-sizing: border-box;
    background: #151515;
    div{
        position: relative;
        #rangeValue{
            position: relative;
            box-sizing: border-box;
            text-align: center;
            display: block;
            font-size: 10em;
            color: rgb(166,166,166);
            font-weight: 800;
            z-index: 1;
            &::after{
                content: '%';
            }
        }
        .range{
            position: relative;
            width: 500px;
            height: 30px;
            // 当设置 appearance: none 的时候，就相当于让select元素脱离浏览器内置select样式了
            appearance: none;
            background: rgba(0,0,0,.8);
            outline: none;
            border-radius: 30px;
            border: 2px solid #000;
            box-shadow: 0 0 0 2px #151515,inset 0 0 5px #000;
            z-index: 1;
            overflow: hidden;
            &::-webkit-slider-thumb{
                appearance: none;
                width: 30px;
                height: 30px;
                background: rgb(166,166,166);
                cursor: pointer;
                border: 10px solid rgb(54,54,54);
                border-radius: 50%;
                box-shadow: -415px 0 0 400px rgb(166,166,166);

                background: skyblue;
            }
        }
        #fillRangeTopLeft{
            position: fixed;
            top: 0;
            left: 0;
            // width: 50%;
            height: 50%;
            z-index: 2;
            // box-shadow: 0 5px 15px rgba(0,0,0,.25);
            // border-right: 1px solid rgba(255,255,255,.0.05);
            // border-bottom: 1px solid rgba(255,255,255,.0.05);
            pointer-events: none;
            box-sizing: border-box;
            // backdrop-filter: blur(15px);

            background-image: url(./塞西莉亚.jpg);
            background-position: -7px 0px;
            background-repeat: no-repeat;
        }
        #fillRangeTopRight{
            position: fixed;
            top: 0;
            right: 0;
            width: 50%;
            // height: 50%;
            z-index: 2;
            // box-shadow: 0 5px 15px rgba(0,0,0,.25);
            // border-left: 1px solid rgba(255,255,255,.0.05);
            // border-bottom: 1px solid rgba(255,255,255,.0.05);
            pointer-events: none;
            box-sizing: border-box;
            // backdrop-filter: blur(15px);

            background-image: url(./塞西莉亚.jpg);
            background-position: -775px 0px;
            background-repeat: no-repeat;


        }
        #fillRangeBottomLeft{
            position: fixed;
            bottom: 0;
            left: 0;
            width: 50%;
            // height: 50%;
            z-index: 2;
            // box-shadow: 0 5px 15px rgba(0,0,0,.25);
            // border-right: 1px solid rgba(255,255,255,.0.05);
            // border-top: 1px solid rgba(255,255,255,.0.05);

            pointer-events: none;
            box-sizing: border-box;
            // backdrop-filter: blur(15px);

            background-position: -7px -360px;
            background-image: url(./塞西莉亚.jpg);
            background-repeat: no-repeat;


        
        }
        #fillRangeBottomRight{
            position: fixed;
            bottom: 0;
            right: 0;
            // width: 50%;
            height: 50%;
            z-index: 2;
            // box-shadow: 0 5px 15px rgba(0,0,0,.25);
            // border-left: 1px solid rgba(255,255,255,.0.05);
            // border-top: 1px solid rgba(255,255,255,.0.05);
            pointer-events: none;
            box-sizing: border-box;
            // backdrop-filter: blur(15px);

            background-position: -775px -360px;
            background-image: url(./塞西莉亚.jpg);
            background-repeat: no-repeat;



        }
    }
    
    
}
